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2 years ago

What is the solution to both systems A and B? O(3, 4) O (3,5). O (4,3) O (5,3)

Mathematics

2 answers:

grandymaker [24]2 years ago

5 0

9514 1404 393

Answer:

Step-by-step explanation:

The next step in the solution of System B is to divide by 15 1/2. This will result in the equation ...

x = 4

The only answer choice that has x = 4 is the ordered pair (4, 3). That ordered pair is the solution to the system.

(15 1/2)x = 62 ⇒ (31/2)x = 124/2 ⇒ x = (124/2)/(31/2) = 124/31 = 4

aksik [14]2 years ago

5 0

Answer:

Step-by-step explanation:

got it right on the test

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-x^2=-36 I need help

Gennadij [26K]

You need to first make everything positive:
x^2=36
Then you need to get the square root of each side:
x=6 or -6

Hope this helps :)

4 0

3 years ago

What is the equation of a circle whose center is begin ordered pair negative 4 comma 6 end ordered pair and whose radius is 9 cm

solong [7]

Answer:

$(x+4)^2+(y-6)^2=81$

Step-by-step explanation:

We want to find equation of a circle with center (-4,6) and radius 9cm.

The equation of a circle with center (h,k) and radius $r$ units is given by;

$(x-h)^2+(y-k)^2=r^2$

We substitute the radius and the center to obtain;

$(x+4)^2+(y-6)^2=9^2$

The required equation is:

$(x+4)^2+(y-6)^2=81$

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3 years ago

An airplane flies from City A in a straight line to City B, which is 120 kilometers north and 180 kilometers west of City A. How

Lubov Fominskaja [6]

Answer: 216 kilometers

Step-by-step explanation:

You need the hypotenuse, this is the formula: h = √(a^2 + b^2)

so...

√(120^2 + 180^2)

√(14400 + 32400)

√46800

216.33

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3 years ago

Please help me answer this question

bulgar [2K]

Answer:

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Step-by-step explanation:

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3 years ago

Which of the following expressions are equivalent to -0.5(1.7+1.7)−0.5(1.7+1.7)minus, 0, point, 5, left parenthesis, 1, point, 7

Allisa [31]

The expressions equivalent to -0.5(1.7+1.7) are -0.5(1.7) - 0.5(1.7)

and 2(-0.5(1.7))

<h3>Distributive law of expansion</h3>

Given the expression below;

-0.5 (1.7 + 1.7)

According to the distributive law;

A(B+C) = AB + AC

Expand

-0.5(1.7) + (-0.5)(1.7)

-0.5(1.7) - 0.5(1.7)

2(-0.5(1.7))

Hence the expressions equivalent to -0.5(1.7+1.7) are -0.5(1.7) - 0.5(1.7)

and 2(-0.5(1.7))

Learn more on distributive law here: brainly.com/question/25224410

#SPJ1

7 0

2 years ago